Suburban SH-42 Guide

SUBURBAN MANUFACTURING COMPANY
Post OfRce Box 399
Dayton, Tennessee37321
. .U~SI~I.W AIRXCEL, Inc.
USER'S INFORMATIONMANUAL
For Models
SH-35 SH-42
SH-35F SH-42F
This book contains instfuctions covering the operatlon and
maintenanceofyour furnace. Keep with unitat all times.
Should
you requirefurther information, contact yourdealer or nearest
SuburbanService Center.
WARNING! Installation of this appliance
must be made in accordance wlth the
written instructions provided in this
manual. No agent, representative or
employee of Suburban or other person
has the authority to change, modify or
waive any provision of the instructions
containedinthis manual.
WARNING! Improper installation,
adjustment, alteration, service or
maintenancecancausepropertydamage,
personalinjuryor lossof life. Refertothe
installation instructions andlor owners
manual providedwith this appliance.
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity ofthis orany otherappliance.
WHAT TO DO IF YOU SMELL GAS
Extinguishany openflame.
Evacuateallpersonsfromthevehicle.
Shut off the gas supply at the gas
containerorsource.
Do nottouch any electrical switch, or
useany phoneor radiointhevehicle.
Do not start the vehicle's engine or
electric generator.
Contact the nearest gas supplier or
qualifiedservicetechnicianfor repairs.
If you cannot reach a gas supplier or
qualifiedservicetechnician,contactthe
nearestfiredepartment.
Donotturnonthegassupplyuntilthe
gas Ieak(s) has been repaired.
Installation and service must be
performed by a qualified installer,
serviceagency orthe gas
supplier.
[~ersonalinjury, propertydamage or lossof le.
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WARNlNGlDonotInstallscreensovertheventforany roam. Sawens
willbecomerestrictedandcauseunsafefumrcsoperatlon. Accessorlet I
MAINTENANCEAND CLEANING
CAUTION: Label all wires before disconnecting for servlcing. Proper
polaritymust be observed so the furnace motor will run wlththe proper
direction
of rotation to Insurecorrect alr delhry (See WiringDiagram.)
CAUTION: Labelallwires prior todlsconnectlon when servlcingcontrols.
WlrlngemcancauseImproperanddangerousfurnaceoperatlon.
WARNING1 W the urer of this a pllance falls to mlntain n In the
conditionInwhich tt was shipped hrn thefactoryor If theapplianceIs
notused
solelyfor Its IntendedpurposeorIfappllanC01snotmalntalned
InaccordancewlththeInstructtonsInthis It'm'IUl, then the riskof afire
andlor the ~raductlonof carbon monoxide exists whlch can cause
Always verffy properoperationoffurnace after servicing.
Listed below are severalsafeyrelateditemsthat YOU shouldfdkwduring the
season assure can4inued safe Of the furnace.
1. Inspectfurnace venting. Venting must be freeof obstructions, vddof soot
and properly
terminated to the atmosphere. (Refer to installalionmanuel.)
You, as the ownerluser, should Inspect the furnace monthlyduring the
heatingseasonfor presenceof soot
on vent Operating the furnace underthis
conditioncould
lead toserlwspropertydamage, personalInjuryor lossoflife.
If soot is observedon the vent, Immediatelyshutfurnace down and contact a
qualifiedserviceagency.
are beingmarketedfor
RV productswhich w donotrucommend. For
your safety, only factory authorfxed park are to be usad on your
furnace.
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2. PeriodicallyInspect the vent for obstructions or presenca of soot. Soot is
formed whenevercombustionisincomplete.Thisisyourvisualwarningthat the
fumaceisoperatinginan unsafe manner. Ifsoot
is present. immediately shut
furnacedown and contactyourdealeror a qualifiedservlca person.
3. Periodicallyobservethe mainbumerflame loassureitisburningwithahard
blueflame
with welldefinedbumer ports (See Figure 2). Ifflameappearsyellow
or bumerhas a lazyflame. shut furnacedown. It ispossiblethat bumer needs
cleaning or replaced.
If excessiverust and corrosionare present cm burner
surface,theburnermust
be thoroughlycleanedor replaced.Theburnermaybe
cleaned usinga sledwire brush and blownclean usinghighcompressionair.
Contada qualifedservicepersonforassistance.

NOTETo Pp8fty obeerre burner aperation, the furnace muet be removed.
This should only be done by your dealer or aqualMedaervkaagency.
4. Kaep fumecs clean. More frequent deanlng may be mqulred due to
exatwdve #nt liwn carp . beddlhgmaterial. etc. it is lmperathre that aJnhl
. burners a dreulating air passagweysof the appllance be
=
%
f The mow is permanentiy lubricatedand requires no 0ilIng.
8. Keep the furnaceareaclear of anywmbwtibie materials, gasdine or other
flammable vapor and lktuids.
7. ~efora optrating fumk, check the locationof the fumaoevent to makesure
it will not be Wodced by the dpening of any door on the trallsr. If it can be
Modred, do not operate the lumaw wlth the door open.
8. Do not rsatrkt the flow of wmbmtbq alr or the warm aircirculationto the
fwnece. To do so could causepersonalinjury andlor death.
9. Never opefabe the fumce if yw smellgas- Do not assume fhet the smell of
gas in your RV is nonal. Any time yw deM the odor of*, it is to be
wnsldwed life tfrreaEsning and mrrected immediately. Extinguisha open
~emee Wudlng dpsreftes andevacuatea" persons lrwn thevehid8.k off
gas supplyat LP p$ bottle. (See safety nd)ce on front cover of this manual.)
lo. bnmedletely shut furnace davn and call a service
iffurnace oydss
matleab a ddw on kwh.
WARNING1 Shoukf cnmdwatlng occur. or the gas supply fall to shut off,
I shut n the mual O. valve to the appliance b.Dn shuttln~ off the 1
rktbical supply.
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11. Nw attempt to repair damaged pa*. Always havethem ~epleced by a
qualHkd service agwlcy.
12. Never aUempt bo mpak the funace ywtseR Seek the help d a qualihd
servics pereon.
1% New mstrkt the ducting irutalled by your trailer manufecturer.To do so
cwki cause immr hnnece opeMan.
14. Do not installair booeten in the dud system. Such devices will cause the
furnace to cyde on Umlt and (o heveemticsailswltchoperaloo.
15. CbWng or dther flammable materfal should not be placed on or near the
applianm.
16 Always Wbw the Opcrratlog insttudom. Do not deviate from the stepby-
step pmcedm.
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y- BURNER UBSERVATI ON WI NDDU (
17. Do not use this appliance if any part has been submerged under wad.r.
Immediatelycalla qualiedservicetechnician to inapedthe appllance and to
raplace any part of the control system end any ps contml that has hn
submergedunder water.
18. When considering add-on rooms, porch or patio. atbnti~flmust be givento
the vsntlngoiyourfumace.Foryour safety, do nottonnioete fumf~ceventinsl&
addmrooms. screen oorch or onto mh. Ddnd so will resutt in ducts d
ambustton being ve& into the rooin or occupl6f.i areas.
'
19. Inany imtlwt In whlch the vent of this appliance can becovereddue to
the m-n of of RV or some specialfeatureof the RV such aa slide out.
popup etc. alwaysinsurethat UI~ appltancecannot be
faled Dettlng the
hennoslat b the positive .OFF-paition and shutilng XII &I and ws
supply to the appliance. Neveroperate furnace wlth vent covered.
Your furnace should be inspected by a qualitled service aOtmcy yearly
before tumlng the fumece an. Parttculer attention should ba gtven to the
tollowing bms.
I. inspect furnace installationand vent termlnah to be sure hrmace is
ploperty secured Inplace,that ventterminates to the atmosphereandthat vent
tubesweriap
popem/. (See installationmanualsupplled with furnaoe.)
2. Inspectchamberandventingtoassurethat these compmntsarephyslcafly
sound, witha& holes a excessive corrosionand that the installationand/or
reinstailation is in accordance with Suburben's instellatton Instructions.
(ReferenceinstallationmanualsupplW with fumectl.)
WARNHQI It isimperative that the products of combustion ba property
M~W to atmosphm and that an combustkmalrruppJled to burner be
drawnfromoutside .tmobph.
3. CW the base on wMch furnace is mounted. Be sure it is physically sound,
vddof any sagglng. deterioration. etc,
4. Inspect furnace, the venting, ducting and the gas piping bo fumace for
obviia signsof detem. Coned any delecis atonce.
5. Inspect ambustbn chamber for restrictions in exheust or intake, it Is
imperative that the Row of intake combr)stlon air andthe flow of exhaustgases
bsina exmiled to the outside atmahere not be obstructed. Arm smt or lease
dab& should be blown out using cdmpntssed air. (see-figure 5.)
8. inspect all asketa. If any gaskets show signs of leakageor deterioretion,
re- them. bafe opefation ofthe furnace depends on allgasketsbeing UgM.
7. Inspect return air inletopenings to the furnace. Removeany rastrictlonsto
asaureadequate air fh.
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CORRECT Fi AHF
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Figure 2

OPERATINGINSTRUCTIONS
NOTE: During inltiai firing of &Is fwna&<bum-off d exrms palnt and dl8
rernalning from manufacturing pmcess my came 'anoklqf for 5 - 10 minutes.
I FOR YOUR SAFETY READ BEFOREOPERATING -
- -- -- -
WARNING: Ifyou do not follow these instructionsexactly, a fire
orexplosionmayresultcauslngpropertydamage,personalinjury
or lossof
Ilfe.
A This appliince does not have a pilot. It Isequipped with en igrdtbndevics
which autornatlcallylightathebumor, Do not light the burner by hand.
B. BEFOREOPERATING mil an around the appliance area ly gas. Be sure
to smellnext tu the kcw beeauee somagas 1.8 heavlermana~r end wlH settla
ontheflow'
WHATTO 00 IF YOU SMELL OAS
Extinguish any open ilarne.
Evacuate all persons from the vehlde.
Shut off the gaa supply at the gas container or source.
Do not twch any elecbic swtWl or useany phoneorradioin the vehlde.
Do not start the vehicle's engine a electric generator.
Cootact the nearestgassoppHer a qualii servka technldan for repah.
IfyoucennotreachagoswpplierorqYsWied~~nldan.contad
the nearestIre daparDnsnt
Do not turn on the gas suppty dl the gas leak@)has been repaired.
C.
UaeaolyyowhandtoptshhorhwnIhegas~krob.NeveruseW.
If the knob will not push in or turn by hand. dartbyto repakn. call aqualifed
service technician. Force orattemptedmpeirmay result h a flmoreqhsbn.
0. Do nof use this appliance if any part hasbeenunder water. ImmedlaWy call
aquailfied seh techniin to inspect the a iance and b replecs anypart
ofhaomtolsy.Mandaqgas~~hasbeen~-.
OPERATINGINSTRUCflONS
1. STOP1 ReedUser's Information Manual supplledwith fufnace.
NOTE: This furnace Isequippd wlth a valve shutd switch with wit& In
2. Tum the manualvalve (If ao equipped) or the vahat the outside LP tank to
=OFF P-. Gas not to hmr nor will the furnace Wb.
me 'OFF positbn. Do not force.
6. Set thermostetto desired setting. NOTE: Motor will not come on instantly.
3. Set thermostat above TOM temperature to beginMawer operation. A sllght
Allow a~~rodmatel~ 30 second.8 for motor ope- gas
and spslh.
dehy wlll ocurr before the blower am88 on. Alh Mower to run for 5
7. Allow30secondsformain bumertoEghtaRerMowercomeson.Thlstwna~~
minutes for unncomkatlon chamber purge cycle.
is equipped with an IgrWm devicewhlchautMMticaHylights the bwner. Do
4. After 5 minutes, me ilymastat lever bebw raom bempemture.Blawerwill
to light the hand.
rernaln on. Wait apprcxunataly 2 minutes Iw Mower to go off.
8. 1 burnerdoes not light, repeatSteps 1 through 8.
6. Opsn marma1shut-offvahre (if so equipped)or the valveat the outside LP 9. #after three (3) attempt9 wlth no IgnM, go to shut down and fxmtad ywr
tank Correct operating charaderisUcs depend on the vah being positioned dealerorabcal reereafional vehlde servke agency. Do not continue to cyde
fullyopen. Never attempt to ~te with a valve partlally closed. furnace through thennostet inan attempt to get ignltlon. NOTE: If furnace
should lock out, the Wawer mll go off In 5 minub andremainoffuntilunH is
reset by readbating themnostat
TO TURN OFF GAS TO APPLIANCE
1. Set the thermosla4 to tot setting, then melever to "OFF* posbn. 3. Turnmanualvalve (If so equipped) to the 'OFF' pasition. Do not force.
2. Turn off all eb%c pawer to the appliance if service is to be petfmed.